--
From: owner-stealth-3000gt-digest@list.sirius.com
(Team3S Digest)
To: stealth-3000gt-digest@list.sirius.com
Subject:
Team3S Digest V1 #25
Reply-To: stealth-3000gt
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Team3S Digest Sunday,
November 15 1998 Volume 01 : Number
025
----------------------------------------------------------------------
Date:
Sat, 14 Nov 1998 07:13:44 -0500
From: "Bob Fontana" <bfontana@securitytechnologies.com>
Subject:
RE: Team3S: Upgrade Cams
Hi, does that mean that a solid lifter set is in
development? When do you
expect it to be available? Any idea of
what they will cost?
- -Bob
> the hydraulic lifter set-up. We
did some experimentation, but was not all
> that happy, so the quest
continues until our solid adjustable lifter set
> becomes
available.
>
>
> Thanks,
> Brian
For
subscribe/unsubscribe info, our web page is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sat, 14 Nov 1998 11:14:07 -0800
From: "GT ALLEY" <thegtalley@email.msn.com>
Subject:
Re: Team3S: Upgrade Cams
Yes, the solid lifter design has been finalized
and the blueprint has been
drawn...Just need to find a vendor to produce the
parts, or possibly we may
purchase the equipment to machine the parts
in-house. Expected time frame
will be approx. 2 months, and cost will be
approx. (don't hold me to this),
will be $25.00-$30.00 each. No more tick
tick tick, and also cams will
become available. Another added benifit for
guys who just install the
lifters without cams, they will see a gain in
performance due to the
0.30-0.50 of "slop" in the hydraulic lifter will now
be gone. Instanty the
cams got bigger by this
much.
Thanks,
Brian@
The GT ALLEY
3/S Performance Central
-
-----Original Message-----
From: Bob Fontana <bfontana@securitytechnologies.com>
To:
stealth-3000gt@list.sirius.com
<stealth-3000gt@list.sirius.com>
Date:
Saturday, November 14, 1998 4:14 AM
Subject: RE: Team3S: Upgrade
Cams
>Hi, does that mean that a solid lifter set is in
development? When do you
>expect it to be available? Any idea
of what they will cost?
>
>-Bob
>
>> the hydraulic
lifter set-up. We did some experimentation, but was not all
>> that
happy, so the quest continues until our solid adjustable lifter set
>>
becomes available.
>>
>>
>> Thanks,
>>
Brian
>
>For subscribe/unsubscribe info, our web page is
http://www.bobforrest.com/Team3S.htm
For
subscribe/unsubscribe info, our web page is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sat, 14 Nov 1998 21:47:32 +0100
From: Mike Chapleski <mike.chapleski@ibm.net>
Subject:
Re: Team3S: Upgrade Cams
>
> 0.30-0.50 of "slop" in the
hydraulic lifter will now be gone. Instanty the
> cams got bigger by this
much.
Is this a misprint or are you saying there is actually a half-inch
of "play" in the
lifters. No wonder they
tick.
Thanks,
Mike C.
'95 Stealth RT TT
For
subscribe/unsubscribe info, our web page is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sat, 14 Nov 1998 14:38:39 -0700
From: "Barry E. King" <beking@home.com>
Subject: RE: Team3S:
Upgrade Cams
Obviously a misprint. The lash would be greater than
the lift. Neat trick.
Barry
> > 0.30-0.50 of
"slop" in the hydraulic lifter will now be gone.
> Instanty the
>
> cams got bigger by this much.
>
> Is this a misprint or are
you saying there is actually a
> half-inch of "play" in the
>
lifters. No wonder they tick.
>
> Thanks,
>
>
Mike C.
> '95 Stealth RT TT
For subscribe/unsubscribe info, our web
page is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sat, 14 Nov 1998 17:56:49 -0500
From: josesini <josesini@engin.umich.edu>
Subject:
Team3S: Re: Upgrade Cams
This could be in mm and not in
inches!
:)
Jose
"Barry E. King" wrote:
>
>
Obviously a misprint. The lash would be greater than the lift. Neat
trick.
>
> Barry
>
> > > 0.30-0.50 of "slop" in
the hydraulic lifter will now be gone.
> > Instanty the
> >
> cams got bigger by this much.
> >
><SNIP>
For
subscribe/unsubscribe info, our web page is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sat, 14 Nov 1998 16:06:28 -0700
From: "Barry E. King" <beking@home.com>
Subject: RE: Team3S:
Re: Upgrade Cams
Good point!
Barry
> -----Original
Message-----
> From: owner-stealth-3000gt@list.sirius.com
>
[mailto:owner-stealth-3000gt@list.sirius.com]On
Behalf Of josesini
> Sent: Saturday, November 14, 1998 3:57 PM
> To:
stealth-3000gt@list.sirius.com
>
Subject: Team3S: Re: Upgrade Cams
>
>
> This could be in mm
and not in inches!
> :)
>
> Jose
>
> "Barry E.
King" wrote:
> >
> > Obviously a misprint. The lash
would be greater than the lift.
> Neat trick.
> >
>
> Barry
> >
> > > > 0.30-0.50 of "slop" in the
hydraulic lifter will now be gone.
> > > Instanty the
> >
> > cams got bigger by this much.
> > >
>
><SNIP>
For subscribe/unsubscribe info, our web page is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sat, 14 Nov 1998 16:50:35 -0800
From: wce@bc.sympatico.ca
Subject: Team3S:
Knock Sensor
Hi group;
Any chance we, or at least I, can get
an operational understanding from
the more knowledgeable out there, on how
the knock sensor works, and if
it will be of assistance if one has an
aftermarket Boost Controller
installed? That's to say...will it work like it
is supposed to with a
Blitz BC , Apexi BC, etc, installed and operating
properly.
Best
Darc
For subscribe/unsubscribe info, our web
page is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sat, 14 Nov 1998 18:22:21 -0700
From: "Barry E. King" <beking@home.com>
Subject: RE: Team3S:
Knock Sensor
The knock sensor is a piezo electric microphone mounted in
contact with the
block. The sensor is not an active device in that it
merely listens to the
sounds the engine is making and sends that signal to
the ECU for processing.
A knock sensor by itself is nothing more than a
microphone. It requires
sophisticated signal processing before anything
uselful can come from the
knock sensor signal. The ECU does all the
work.
The signal sent to the ECU looks similar to a sound wave
form. The ECU
applies filters to get rid of "noise" (all the normal
engine sounds) and
come up with a signal from which the presence of knock can
be determined.
The presence of a boost controller will in no way affect
the behavior of the
knock sensor circuitry. There is a side effect
however.
The ECU has two modes when knock is detected: short term
and long term.
The ECU recovers from short term knock fairly rapidly.
Long term knock
behavior is more permanent.
When knock is detected the
first thing the ECU will attempt to do is remove
or retard ignition
timing. If knock is eliminated the ECU will add timing
back in.
It does this for a period of time. I do not know specifics.
If
maxiumum retard is reached and knock is still present the ECU attempts
to
reduce boost by actuating the stock boost solenoid. Clearly this
will have
no effect if an EVC is in place or some other mechanism is in place
to
bypass the reduction of boost by the stock solenoid. Since knock
will not
be reduced by this action the "long term" knock program is
implemented.
The long term knock program retards timing a lot thereby
reducing the power
you'd otherwise enjoy. Some ECUs will not attempt to
add timing back in for
around 300 miles, the presumption being there's a bad
fuel in the tank.
Other ECUs won't attempt to add timing back in until the
fuel level falls
below and then above a certain level. In the latter
case it is possible to
have the timing permanently retarded. Imagine if
the limit were 1/4 tank.
What if you never allowed fuel level to fall below
1/4 tank? The ECU would
never know to attempt adding timing back
in. This is not uncommon. Running
less than 1/4 of a tank can be
hard on an electric in tank fuel pump (as is
the case in the 3000GT) since
the pump relies on fuel to keep it cool.
You can get around this by
restting the ECU periodically, especially if you
have been tinkering with the
fuel delivery or other things or suspect that
you have had a bad tank of
fuel. I reset my ECU every week or two just
because. I am not
concerend about long term fuel trims which is the
downside of resetting the
ECU frequently.
Someone who has dissected the 3000GT ECU would better
know the precise
behavior, but the above is typical for many cars, including
the DSM which
being from the same manufacturer it is not unreasonable to
assume similar if
not identical behavior.
Another side effect of
retarded timing is increased EGTs. This can cause a
head scratching
session if you are looking at O2 voltages and EGT values and
they don't
jive. If the timing is retarded a lot the EGT will be high yet
the O2
voltage may indicate a rich situation.
Bottom line, causing the engine to
knock is not cool.
Regards,
Barry
> Hi
group;
>
> Any chance we, or at least I, can get an
operational understanding from
> the more knowledgeable out there, on how
the knock sensor works, and if
> it will be of assistance if one has
an aftermarket Boost Controller
> installed? That's to say...will it work
like it is supposed to with a
> Blitz BC , Apexi BC, etc, installed
and operating properly.
>
> Best
>
>
Darc
>
> For subscribe/unsubscribe info, our web page is
http://www.bobforrest.com/Team3S.htm
For
subscribe/unsubscribe info, our web page is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sat, 14 Nov 1998 17:36:45 -0800
From: Ryan Peterson <rpeterson@rh2.com>
Subject: Team3S:
Crankshaft pulley
I would like to remove the crankshaft pulley to get it
chromed (don't
ask). If I just remove it, and nothing else, is there
any calibration,
adjustment, alignments, etc. that would need to be done once
it's
reinstalled?
For subscribe/unsubscribe info, our web page is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sat, 14 Nov 1998 18:02:03 -0800
From: wce@bc.sympatico.ca
Subject: Re:
Team3S: Knock Sensor
Thanks Barry....some good insights here...still
digesting them..
Darc
For subscribe/unsubscribe info, our web page
is http://www.bobforrest.com/Team3S.htm
------------------------------
Date:
Sun, 15 Nov 1998 09:00:43 -0500
From: "Bob Fontana" <bfontana@securitytechnologies.com>
Subject:
RE: Team3S: Crankshaft pulley
Ryan, there won't be any problem chroming
the outside, visible part of the
pulley, but make sure you or your chrome
guys don't drop it. If dropped,
the outside will surely chip (done it
twice myself) and you will be buying a
brand new one.
No special
adjustment or alignment should be necessary when you install it.
-
-Bob
> I would like to remove the crankshaft pulley to get it chromed
(don't
> ask). If I just remove it, and nothing else, is there any
calibration,
> adjustment, alignments, etc. that would need to be done
once it's
> reinstalled?
For subscribe/unsubscribe info, our web
page is http://www.bobforrest.com/Team3S.htm
------------------------------
End
of Team3S Digest V1 #25
***************************
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info and FAQ, see our web page at http://www.bobforrest.com/Team3S.htm